rust/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr

error: expressions must be enclosed in braces to be used as const generic arguments
  --> $DIR/disallowed-positions.rs:233:9
   |
LL |         true && let 1 = 1
   |         ^^^^^^^^^^^^^^^^^
   |
help: enclose the `const` expression in braces
   |
LL |         { true && let 1 = 1 }
   |         +                   +

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:30:9
   |
LL |     if &let 0 = 0 {}
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:33:9
   |
LL |     if !let 0 = 0 {}
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:34:9
   |
LL |     if *let 0 = 0 {}
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:36:9
   |
LL |     if -let 0 = 0 {}
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:44:9
   |
LL |     if (let 0 = 0)? {}
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:48:16
   |
LL |     if true || let 0 = 0 {}
   |                ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:49:17
   |
LL |     if (true || let 0 = 0) {}
   |                 ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:50:25
   |
LL |     if true && (true || let 0 = 0) {}
   |                         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:51:25
   |
LL |     if true || (true && let 0 = 0) {}
   |                         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:54:12
   |
LL |     if x = let 0 = 0 {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:57:15
   |
LL |     if true..(let 0 = 0) {}
   |               ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:59:11
   |
LL |     if ..(let 0 = 0) {}
   |           ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:61:9
   |
LL |     if (let 0 = 0).. {}
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:65:8
   |
LL |     if let Range { start: _, end: _ } = true..true && false {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:69:8
   |
LL |     if let Range { start: _, end: _ } = true..true || false {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:76:8
   |
LL |     if let Range { start: F, end } = F..|| true {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:84:8
   |
LL |     if let Range { start: true, end } = t..&&false {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:90:19
   |
LL |     if let true = let true = true {}
   |                   ^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:94:12
   |
LL |     while &let 0 = 0 {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:97:12
   |
LL |     while !let 0 = 0 {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:98:12
   |
LL |     while *let 0 = 0 {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:100:12
   |
LL |     while -let 0 = 0 {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:108:12
   |
LL |     while (let 0 = 0)? {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:112:19
   |
LL |     while true || let 0 = 0 {}
   |                   ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:113:20
   |
LL |     while (true || let 0 = 0) {}
   |                    ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:114:28
   |
LL |     while true && (true || let 0 = 0) {}
   |                            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:115:28
   |
LL |     while true || (true && let 0 = 0) {}
   |                            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:118:15
   |
LL |     while x = let 0 = 0 {}
   |               ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:121:18
   |
LL |     while true..(let 0 = 0) {}
   |                  ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:123:14
   |
LL |     while ..(let 0 = 0) {}
   |              ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:125:12
   |
LL |     while (let 0 = 0).. {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:129:11
   |
LL |     while let Range { start: _, end: _ } = true..true && false {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:133:11
   |
LL |     while let Range { start: _, end: _ } = true..true || false {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:140:11
   |
LL |     while let Range { start: F, end } = F..|| true {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:148:11
   |
LL |     while let Range { start: true, end } = t..&&false {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:154:22
   |
LL |     while let true = let true = true {}
   |                      ^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:168:6
   |
LL |     &let 0 = 0;
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:170:6
   |
LL |     !let 0 = 0;
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:171:6
   |
LL |     *let 0 = 0;
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:173:6
   |
LL |     -let 0 = 0;
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:181:6
   |
LL |     (let 0 = 0)?;
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:185:13
   |
LL |     true || let 0 = 0;
   |             ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:186:14
   |
LL |     (true || let 0 = 0);
   |              ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:187:22
   |
LL |     true && (true || let 0 = 0);
   |                      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:190:9
   |
LL |     x = let 0 = 0;
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:192:12
   |
LL |     true..(let 0 = 0);
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:193:8
   |
LL |     ..(let 0 = 0);
   |        ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:194:6
   |
LL |     (let 0 = 0)..;
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:196:6
   |
LL |     (let Range { start: _, end: _ } = true..true || false);
   |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:200:6
   |
LL |     (let true = let true = true);
   |      ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:204:6
   |
LL |     &let 0 = 0
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:215:17
   |
LL |         true && let 1 = 1
   |                 ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:219:17
   |
LL |         true && let 1 = 1
   |                 ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:223:17
   |
LL |         true && let 1 = 1
   |                 ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:233:17
   |
LL |         true && let 1 = 1
   |                 ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parentheses in those conditions

warning: the feature `let_chains` is incomplete and may not be safe to use and/or cause compiler crashes
  --> $DIR/disallowed-positions.rs:20:12
   |
LL | #![feature(let_chains)] // Avoid inflating `.stderr` with overzealous gates in this test.
   |            ^^^^^^^^^^
   |
   = note: `#[warn(incomplete_features)]` on by default
   = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:30:8
   |
LL |     if &let 0 = 0 {}
   |        ^^^^^^^^^^ expected `bool`, found `&bool`
   |
help: consider removing the borrow
   |
LL -     if &let 0 = 0 {}
LL +     if let 0 = 0 {}
   | 

error[E0614]: type `bool` cannot be dereferenced
  --> $DIR/disallowed-positions.rs:34:8
   |
LL |     if *let 0 = 0 {}
   |        ^^^^^^^^^^

error[E0600]: cannot apply unary operator `-` to type `bool`
  --> $DIR/disallowed-positions.rs:36:8
   |
LL |     if -let 0 = 0 {}
   |        ^^^^^^^^^^ cannot apply unary operator `-`

error[E0277]: the `?` operator can only be applied to values that implement `Try`
  --> $DIR/disallowed-positions.rs:44:8
   |
LL |     if (let 0 = 0)? {}
   |        ^^^^^^^^^^^^ the `?` operator cannot be applied to type `bool`
   |
   = help: the trait `Try` is not implemented for `bool`

error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
  --> $DIR/disallowed-positions.rs:44:19
   |
LL | / fn nested_within_if_expr() {
LL | |     if &let 0 = 0 {}
LL | |
LL | |
...  |
LL | |     if (let 0 = 0)? {}
   | |                   ^ cannot use the `?` operator in a function that returns `()`
...  |
LL | |     if let true = let true = true {}
LL | | }
   | |_- this function should return `Result` or `Option` to accept `?`
   |
   = help: the trait `FromResidual<_>` is not implemented for `()`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:54:8
   |
LL |     if x = let 0 = 0 {}
   |        ^^^^^^^^^^^^^ expected `bool`, found `()`
   |
help: you might have meant to compare for equality
   |
LL |     if x == let 0 = 0 {}
   |          ~~

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:57:8
   |
LL |     if true..(let 0 = 0) {}
   |        ^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:59:8
   |
LL |     if ..(let 0 = 0) {}
   |        ^^^^^^^^^^^^^ expected `bool`, found struct `RangeTo`
   |
   = note: expected type `bool`
            found struct `RangeTo<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:61:8
   |
LL |     if (let 0 = 0).. {}
   |        ^^^^^^^^^^^^^ expected `bool`, found struct `RangeFrom`
   |
   = note: expected type `bool`
            found struct `RangeFrom<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:65:12
   |
LL |     if let Range { start: _, end: _ } = true..true && false {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^   ---- this expression has type `bool`
   |            |
   |            expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:65:8
   |
LL |     if let Range { start: _, end: _ } = true..true && false {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:69:12
   |
LL |     if let Range { start: _, end: _ } = true..true || false {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^   ---- this expression has type `bool`
   |            |
   |            expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:69:8
   |
LL |     if let Range { start: _, end: _ } = true..true || false {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:76:12
   |
LL |     if let Range { start: F, end } = F..|| true {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^ expected fn pointer, found struct `std::ops::Range`
   |
   = note: expected fn pointer `fn() -> bool`
                  found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:76:41
   |
LL |     if let Range { start: F, end } = F..|| true {}
   |                                         ^^^^^^^ expected `bool`, found closure
   |
   = note: expected type `bool`
           found closure `[closure@$DIR/disallowed-positions.rs:76:41: 76:48]`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:76:8
   |
LL |     if let Range { start: F, end } = F..|| true {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:84:12
   |
LL |     if let Range { start: true, end } = t..&&false {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^   - this expression has type `&&bool`
   |            |
   |            expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:84:44
   |
LL |     if let Range { start: true, end } = t..&&false {}
   |                                            ^^^^^^^ expected `bool`, found `&&bool`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:84:8
   |
LL |     if let Range { start: true, end } = t..&&false {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0277]: the `?` operator can only be applied to values that implement `Try`
  --> $DIR/disallowed-positions.rs:40:20
   |
LL |         if let 0 = 0? {}
   |                    ^^ the `?` operator cannot be applied to type `{integer}`
   |
   = help: the trait `Try` is not implemented for `{integer}`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:94:11
   |
LL |     while &let 0 = 0 {}
   |           ^^^^^^^^^^ expected `bool`, found `&bool`
   |
help: consider removing the borrow
   |
LL -     while &let 0 = 0 {}
LL +     while let 0 = 0 {}
   | 

error[E0614]: type `bool` cannot be dereferenced
  --> $DIR/disallowed-positions.rs:98:11
   |
LL |     while *let 0 = 0 {}
   |           ^^^^^^^^^^

error[E0600]: cannot apply unary operator `-` to type `bool`
  --> $DIR/disallowed-positions.rs:100:11
   |
LL |     while -let 0 = 0 {}
   |           ^^^^^^^^^^ cannot apply unary operator `-`

error[E0277]: the `?` operator can only be applied to values that implement `Try`
  --> $DIR/disallowed-positions.rs:108:11
   |
LL |     while (let 0 = 0)? {}
   |           ^^^^^^^^^^^^ the `?` operator cannot be applied to type `bool`
   |
   = help: the trait `Try` is not implemented for `bool`

error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
  --> $DIR/disallowed-positions.rs:108:22
   |
LL | / fn nested_within_while_expr() {
LL | |     while &let 0 = 0 {}
LL | |
LL | |
...  |
LL | |     while (let 0 = 0)? {}
   | |                      ^ cannot use the `?` operator in a function that returns `()`
...  |
LL | |     while let true = let true = true {}
LL | | }
   | |_- this function should return `Result` or `Option` to accept `?`
   |
   = help: the trait `FromResidual<_>` is not implemented for `()`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:118:11
   |
LL |     while x = let 0 = 0 {}
   |           ^^^^^^^^^^^^^ expected `bool`, found `()`
   |
help: you might have meant to compare for equality
   |
LL |     while x == let 0 = 0 {}
   |             ~~

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:121:11
   |
LL |     while true..(let 0 = 0) {}
   |           ^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:123:11
   |
LL |     while ..(let 0 = 0) {}
   |           ^^^^^^^^^^^^^ expected `bool`, found struct `RangeTo`
   |
   = note: expected type `bool`
            found struct `RangeTo<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:125:11
   |
LL |     while (let 0 = 0).. {}
   |           ^^^^^^^^^^^^^ expected `bool`, found struct `RangeFrom`
   |
   = note: expected type `bool`
            found struct `RangeFrom<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:129:15
   |
LL |     while let Range { start: _, end: _ } = true..true && false {}
   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^   ---- this expression has type `bool`
   |               |
   |               expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:129:11
   |
LL |     while let Range { start: _, end: _ } = true..true && false {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:133:15
   |
LL |     while let Range { start: _, end: _ } = true..true || false {}
   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^   ---- this expression has type `bool`
   |               |
   |               expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:133:11
   |
LL |     while let Range { start: _, end: _ } = true..true || false {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:140:15
   |
LL |     while let Range { start: F, end } = F..|| true {}
   |               ^^^^^^^^^^^^^^^^^^^^^^^ expected fn pointer, found struct `std::ops::Range`
   |
   = note: expected fn pointer `fn() -> bool`
                  found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:140:44
   |
LL |     while let Range { start: F, end } = F..|| true {}
   |                                            ^^^^^^^ expected `bool`, found closure
   |
   = note: expected type `bool`
           found closure `[closure@$DIR/disallowed-positions.rs:140:44: 140:51]`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:140:11
   |
LL |     while let Range { start: F, end } = F..|| true {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:148:15
   |
LL |     while let Range { start: true, end } = t..&&false {}
   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^   - this expression has type `&&bool`
   |               |
   |               expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:148:47
   |
LL |     while let Range { start: true, end } = t..&&false {}
   |                                               ^^^^^^^ expected `bool`, found `&&bool`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:148:11
   |
LL |     while let Range { start: true, end } = t..&&false {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0277]: the `?` operator can only be applied to values that implement `Try`
  --> $DIR/disallowed-positions.rs:104:23
   |
LL |         while let 0 = 0? {}
   |                       ^^ the `?` operator cannot be applied to type `{integer}`
   |
   = help: the trait `Try` is not implemented for `{integer}`

error[E0614]: type `bool` cannot be dereferenced
  --> $DIR/disallowed-positions.rs:171:5
   |
LL |     *let 0 = 0;
   |     ^^^^^^^^^^

error[E0600]: cannot apply unary operator `-` to type `bool`
  --> $DIR/disallowed-positions.rs:173:5
   |
LL |     -let 0 = 0;
   |     ^^^^^^^^^^ cannot apply unary operator `-`

error[E0277]: the `?` operator can only be applied to values that implement `Try`
  --> $DIR/disallowed-positions.rs:181:5
   |
LL |     (let 0 = 0)?;
   |     ^^^^^^^^^^^^ the `?` operator cannot be applied to type `bool`
   |
   = help: the trait `Try` is not implemented for `bool`

error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
  --> $DIR/disallowed-positions.rs:181:16
   |
LL | / fn outside_if_and_while_expr() {
LL | |     &let 0 = 0;
LL | |
LL | |     !let 0 = 0;
...  |
LL | |     (let 0 = 0)?;
   | |                ^ cannot use the `?` operator in a function that returns `()`
...  |
LL | |
LL | | }
   | |_- this function should return `Result` or `Option` to accept `?`
   |
   = help: the trait `FromResidual<_>` is not implemented for `()`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:196:10
   |
LL |     (let Range { start: _, end: _ } = true..true || false);
   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^   ---- this expression has type `bool`
   |          |
   |          expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:204:5
   |
LL | fn outside_if_and_while_expr() {
   |                                - help: try adding a return type: `-> &bool`
...
LL |     &let 0 = 0
   |     ^^^^^^^^^^ expected `()`, found `&bool`

error[E0277]: the `?` operator can only be applied to values that implement `Try`
  --> $DIR/disallowed-positions.rs:177:17
   |
LL |         let 0 = 0?;
   |                 ^^ the `?` operator cannot be applied to type `{integer}`
   |
   = help: the trait `Try` is not implemented for `{integer}`

error: aborting due to 103 previous errors; 1 warning emitted

Some errors have detailed explanations: E0277, E0308, E0600, E0614.
For more information about an error, try `rustc --explain E0277`.